Improper Handling of Exceptional Conditions Affecting rubygem-net-telnet package, versions <0:0.1.1-109.0.1.module+el8.5.0+20513+af7be134


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.24% (65th percentile)

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  • Snyk IDSNYK-ORACLE8-RUBYGEMNETTELNET-2585532
  • published10 Apr 2022
  • disclosed1 Aug 2021

Introduced: 1 Aug 2021

CVE-2021-32066  (opens in a new tab)
CWE-755  (opens in a new tab)

How to fix?

Upgrade Oracle:8 rubygem-net-telnet to version 0:0.1.1-109.0.1.module+el8.5.0+20513+af7be134 or higher.
This issue was patched in ELSA-2022-0672-1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-net-telnet package and not the rubygem-net-telnet package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

CVSS Scores

version 3.1